Patents by Inventor Cristian Constantinescu

Cristian Constantinescu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11061753
    Abstract: Systems, apparatuses, and methods for implementing a hardware enforcement mechanism to enable platform-specific firmware visibility into an error state ahead of the operating system are disclosed. A system includes at least one or more processor cores, control logic, a plurality of registers, platform-specific firmware, and an operating system (OS). The control logic allows the platform-specific firmware to decide if and when the error state is visible to the OS. In some cases, the platform-specific firmware blocks the OS from accessing the error state. In other cases, the platform-specific firmware allows the OS to access the error state such as when the OS needs to unmap a page. The control logic enables the platform-specific firmware, rather than the OS, to make decisions about the replacement of faulty components in the system.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 13, 2021
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Dean A. Liberty, Vilas K. Sridharan, Michael T. Clark, Jelena Ilic, David S. Christie, James R. Williamson, Cristian Constantinescu
  • Publication number: 20190303230
    Abstract: Systems, apparatuses, and methods for implementing a hardware enforcement mechanism to enable platform-specific firmware visibility into an error state ahead of the operating system are disclosed. A system includes at least one or more processor cores, control logic, a plurality of registers, platform-specific firmware, and an operating system (OS). The control logic allows the platform-specific firmware to decide if and when the error state is visible to the OS. In some cases, the platform-specific firmware blocks the OS from accessing the error state. In other cases, the platform-specific firmware allows the OS to access the error state such as when the OS needs to unmap a page. The control logic enables the platform-specific firmware, rather than the OS, to make decisions about the replacement of faulty components in the system.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventors: Dean A. Liberty, Vilas K. Sridharan, Michael T. Clark, Jelena Ilic, David S. Christie, James R. Williamson, Cristian Constantinescu
  • Patent number: 8370775
    Abstract: A method for determining a predicted soft error rate (SER) for an integrated circuit device design includes calculating the SER based on a predicted amount of charge imparted by a one or more particles to the integrated circuit device based on the design. The SER is further based on a predicted sensitivity level of a region of the integrated circuit device to the charge imparted by the one or more particles, and can also be based on the energy spectrum of the particles.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: February 5, 2013
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Cristian Constantinescu
  • Publication number: 20110191741
    Abstract: A method for determining a predicted soft error rate (SER) for an integrated circuit device design includes calculating the SER based on a predicted amount of charge imparted by a one or more particles to the integrated circuit device based on the design. The SER is further based on a predicted sensitivity level of a region of the integrated circuit device to the charge imparted by the one or more particles, and can also be based on the energy spectrum of the particles.
    Type: Application
    Filed: February 2, 2010
    Publication date: August 4, 2011
    Applicant: Advanced Micro Devices, Inc.
    Inventor: Cristian Constantinescu